Horseshoe-calk.



v No. 741,153,- PATENTED OCT. 1a, 1903.

s. MALMQUIST.

HORSESHOE GALK.

APPLICATION FILED APR. 6, 1903. N0 MODEL.

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Patented October 13, 1903.

ATENT tries.

SXVAN MALMQUIST, OF CARLTON, MINNESOTA.

HORSESHOE- -CALK.

@EEGIIEICATION forming part of Letters Patent No. 741,153, dated October13, 1903.

Application filed April 6, 1908. Serial No. 151,387. (No model.)

To aZZ whom it 71141.11 concern.-

Be it known that I, SWAN MALMQUIST, a citizen of the United States,residing at Carlton, in the county of Carlton and State of Minnesota,have invented certain new and useful Improvements in Horseshoe-Oalks;and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to improvements in horseshoe-calks.

The object of the invention is to provide a calk which may be quicklyapplied to a horseshoe and which will not become casually displaced.

A further object is to provide a calk having means whereby the same maybe removed from a shoe and which is so constructed that the horse willnot cut himself and the dan ger of side slipping is reduced.

With these and other objects in view the invention consists of certainnovel features of construction, combination, and arrangement of parts,as willbe more fully described, and particularly pointed out in theappended claims.

Figure 1 is a longitudinal-vertical section through a horseshoe, showingthe application of the toe and heel calks. Fig. 2 is a detailperspective View of the calk removed.

In the drawings, 1 denotes the shoe, which may be of any form. 2 denotesthe toe-calk, and 3 denotes the heel-calk. The toe and heel calks arealike except that the points of the toe-calks are tapered more on oneside than another, while the points of the heelcalks taper alike on bothsides.

The calks consist of a substantially V or wedge shaped point 4 and arectangular slightly-tapering shank 5, provided on two of its sides withaseries of horizontally-disposed shoulders or serrations 6, having downwardlydirected edges or points which when the calk is driven in placeengage the walls of the hole into which the shank is driven and securelyhold the same therein.

7denotes longitudinal horizontally-disp0sed shoulders formed at the baseof the shank or at its point of juncture with the point, the saidshoulders forming a stop or support, which is engaged by the bottom ofthe shoe.

8 denotes shoulders arranged transversely across the calk below theshoulders 7, so that when the calk is in place a space is left betweenthe lower side of the shoe and the top of the shoulder 8, whereby thesame may be engaged by a pair of tongs and drawn out of the shoe.

The lower edge of the point 4 of the calks is rounded or curved, asshown at 9, the object of which is to prevent side slipping, whichfrequently occurs in the use of chisel calks. The curved edge alsoprevents the horse from cutting himself should he overreach orinterfere.

The calks are applied to the shoe in a perpendicular manner, thetoe-calk point being tapered or beveled slightly more on. the rear sidethan on thefront,impartiug to the calk the form in end elevation orvertical front-to-rear section of a scalene triangle. This constructionand application of the calks gives the horse a firm sure footing on icyroads and'prevents slipping in any direction.

The construction of the calk is also such that it permits the same to beapplied and removed without removing the shoe from the horse, theshoulders 8 facilitating the engagement of tongs with the calk to enablethe same to be drawn out.

A further advantage claimed for the calk is the small size and shape ofthe shank, which requires but a small hole or opening in the shoe, andtherefore in light shoes the same are not materially weakened.Furthermore, the rectangular shape of the shank prevents the calk fromturning and always retains the same in proper position.

From the foregoing description, taken in connection with theaccompanying drawings, the construction and operation of the inventionwill be readily understood without requiring a more extendedexplanation.

Various changes in the form, proportion, and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of this invention.

. Having thus described myinvention, what I claim, and desireto secureby Letters Patent, is-

1. The combination with a horseshoe having a calk-opening, of a calkprovided with IO width than the upper part of the body portion and ofthe same Width as the shank, and

front and rear shoulders coextensive in width with the upper part of thebody portion and disposed on opposite sides of the shank and endshoulders, substantially as described.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

SWAN MALMQUIST.

Witnesses:

M. E. OLDENBURG, HENRY OLDENBURG.

